Backpack



FIG. 1 is a perspective front view of a backpack with the pocket in the closed position;

FIG. 2 is a front elevation view of the backpack with the pocket in the closed position;

FIG. 3 is a rear elevation view of the backpack with the pocket in the closed position;

FIG. 4 is a left side elevation view of the backpack with the pocket in the closed position; the right side view being a mirror image thereof;

FIG. 5 is a top elevation view of the backpack with the pocket in the closed position;

FIG. 6 is a bottom elevation view of the backpack with the pocket in the closed position;

FIG. 7 is a perspective front view of a backpack with the pocket in the open position;

FIG. 8 is a front elevation view of the backpack with the pocket in the open position;

FIG. 9 is a rear elevation view of the backpack with the pocket in the open position;

FIG. 10 is a left side elevation view of the backpack with the pocket in the open position; the right side view being a mirror image thereof;

FIG. 11 is a top elevation view of the backpack with the pocket in the open position; and,

FIG. 12 is a bottom elevation view of the backpack with the pocket in the open position.

The evenly dashed broken lines shown in the drawings are for the purpose of illustrating portions of the backpack that form no part of the claim. The unevenly dashed lines in FIGS. 7 and 8 are for the purpose of illustrating a boundary that forms no part of the claim. 

CLAIM The ornamental design for a backpack, as shown and described. 